CN119714184A - A strain detection system for weak-rigidity energetic charge tape winding forming charge and its working method - Google Patents
A strain detection system for weak-rigidity energetic charge tape winding forming charge and its working method Download PDFInfo
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- CN119714184A CN119714184A CN202411928856.5A CN202411928856A CN119714184A CN 119714184 A CN119714184 A CN 119714184A CN 202411928856 A CN202411928856 A CN 202411928856A CN 119714184 A CN119714184 A CN 119714184A
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Abstract
本发明属于弱刚度含能药柱系统的一体化增材制造技术领域，涉及一种弱刚度含能药柱带缠绕成型药柱应变检测系统及其工作方法。系统包括机架、控制系统、信号采集系统及纤维缠绕机；机架上安装有多个气胀轴，每个气胀轴的一端安装有驱动系统，在每个气胀轴上安装有弱刚度含能药柱；在弱刚度含能药柱的内壁和气胀轴之间安装有若干个压力传感器，压力传感器与信号采集系统连接；控制系统控制纤维缠绕机和驱动系统运动。通过信号采集系统采集到弱刚度含能药柱所受到的周期性的变载荷压力，当周期性的变载荷压力高于预设压力时，则减小纤维缠绕机的直线运动式速度和驱动系统的转速。通过传感器的应变检测，能够做到及时干预，避免药柱破坏。
The present invention belongs to the technical field of integrated additive manufacturing of weak-rigidity energetic charge systems, and relates to a strain detection system for weak-rigidity energetic charge belt winding and forming charge and its working method. The system includes a frame, a control system, a signal acquisition system and a filament winding machine; a plurality of inflatable shafts are installed on the frame, a drive system is installed at one end of each inflatable shaft, and a weak-rigidity energetic charge is installed on each inflatable shaft; a number of pressure sensors are installed between the inner wall of the weak-rigidity energetic charge and the inflatable shaft, and the pressure sensors are connected to the signal acquisition system; the control system controls the movement of the filament winding machine and the drive system. The signal acquisition system collects the periodic variable load pressure to which the weak-rigidity energetic charge is subjected, and when the periodic variable load pressure is higher than the preset pressure, the linear motion speed of the filament winding machine and the rotation speed of the drive system are reduced. Through the strain detection of the sensor, timely intervention can be achieved to avoid damage to the charge.
Description
Technical Field
The invention belongs to the technical field of integrated additive manufacturing of weak-rigidity energetic grain systems, and particularly relates to a weak-rigidity energetic grain belt winding forming grain strain detection system and a working method thereof.
Background
The existing production mode of the weak-rigidity energetic explosive column is to save time and production cost and realize the rapid die-free integrated manufacture of the weak-rigidity energetic explosive column, and the method provides an energetic material belt medicine winding forming mode, namely the manufacture of a continuous fiber shell is directly realized on the energetic explosive column. In the process of winding and forming the energy-containing material grain shell by the fiber tape, as the used grain belongs to a non-fully cured Newtonian body, the rigidity is poor, deformation can be generated along with the rotation of the main shaft, and meanwhile, certain internal stress can be distributed in the main shaft, so that the grain is deformed in the integral curing and forming process, and even the grain is damaged in serious cases. At present, stress change cannot be detected, and early warning cannot be realized.
Disclosure of Invention
The invention aims to provide a strain detection system for a weak-rigidity energy-containing grain tape winding forming grain and a working method thereof, which solve the problem that stress change generated by a main shaft on a incompletely solidified grain cannot be monitored and detected due to rapid rotation of the main shaft in the process of tape winding.
The invention is realized by the following technical scheme:
a weak-rigidity energetic grain belt winding forming grain strain detection system comprises a frame, a control system, a signal acquisition system and a fiber winding machine;
A plurality of inflatable shafts are arranged on the frame, a driving system is arranged at one end of each inflatable shaft, and a weak-rigidity energetic grain is arranged on each inflatable shaft;
a plurality of pressure sensors are arranged between the inner wall of the weak-rigidity energetic grain and the air expansion shaft, and the pressure sensors are connected with a signal acquisition system;
The control system is connected with the fiber winding machine and the driving system and is used for controlling the fiber winding machine and the driving system to move.
Further, a slip ring is further installed on the tail end of each inflatable shaft, the slip ring comprises a slip ring stator and a slip ring rotor, the slip ring rotor is sleeved outside the inflatable shaft, and the slip ring stator is sleeved outside the slip ring rotor.
Further, the pressure sensor signal wire is communicated with the slip ring rotor, the slip ring rotor is in sliding contact with the slip ring stator, and the slip ring stator is communicated with the signal acquisition system.
Further, a fixed base and a connecting plate which is vertically connected with the fixed base are arranged on the frame, and the slip ring stator is connected with the fixed base through the connecting plate.
Further, two supporting seats are arranged on the frame, the inflatable shaft penetrates through the two supporting seats, and the driving system is arranged on the outer side of one supporting seat.
Further, a plurality of balloon shafts are arranged in parallel.
Further, the driving system adopts a servo motor.
Further, the rotating speed of the weak-rigidity energetic grain has a logic relation with the linear motion of the filament winding machine, and the expression is as follows:
V=W×R;
wherein W represents the rotating speed of the weak-rigidity energetic grain, namely the rotating speed of a servo motor, V represents the linear speed of a fiber winding machine, and R represents the rotating radius.
The invention also discloses a working method of the weak-rigidity energetic grain belt winding forming grain strain detection system, which comprises the following steps:
The control system controls the fiber winding machine and the driving system to move according to the instruction, and the driving system drives the inflatable shaft to rotate so as to drive the weak-rigidity energetic explosive column fixed on the inflatable shaft to rotate;
the fiber strip material stretched out by the weak-rigidity energetic explosive column and the fiber strip material is jointly wound and molded into a weak-rigidity energetic explosive column shell according to the instruction of a control system, the weak-rigidity energetic explosive column rotates and simultaneously generates periodic variable load pressure to a pressure sensor contacted with the weak-rigidity energetic explosive column, the pressure sensor transmits pressure data to a signal acquisition system for processing and storage, and if the periodic variable load pressure is higher than a preset pressure, the control system controls the fiber winding machine and a driving system to decelerate.
Compared with the prior art, the invention has the following beneficial technical effects:
The invention discloses a strain detection system for a weak-rigidity energetic grain tape winding forming grain, which is characterized in that a plurality of pressure sensors are arranged between the inner wall of the weak-rigidity energetic grain and an air inflation shaft, the pressure sensors are connected with a signal acquisition system, the periodic variable load pressure born by the weak-rigidity energetic grain can be acquired through the signal acquisition system, the quality of the energetic grain produced by the tape winding forming is analyzed and processed through the acquired pressure data, and if the periodic variable load pressure is higher than a preset pressure, the linear motion speed of a fiber winding machine and the rotating speed of a driving system are required to be reduced. The invention can intervene in time by the strain detection of the sensor, and avoid the damage of the grain.
Further, the inflatable shaft rotates in the process of winding very much, the pressure sensor is arranged at the relevant part of the inflatable shaft and used for detecting the pressure condition, if a signal wire is directly led out, the problems of cable winding and the like can occur when the inflatable shaft rotates, so that signals cannot be normally transmitted and even the circuit is damaged. The sliding ring is matched with the sliding ring stator through sliding contact of the sliding ring rotor, so that the signal wire of the pressure sensor can be stably conducted with the sliding ring rotor no matter what rotating state the air expansion shaft is in, the rotor and the stator slide relatively and can transmit signals to the stator, and then the stator smoothly transmits the signals to the stationary signal acquisition system, so that continuous and reliable signal transmission between the rotating part and the stationary part is ensured.
Drawings
FIG. 1 is a schematic diagram of a system for detecting the winding forming stress of a weak-rigidity energetic grain belt drug according to the present invention;
FIG. 2 is a schematic illustration of the position of the inflatable shaft, weakly rigid energetic grain and pressure sensor of the present invention;
wherein, 1, weak rigidity energetic grain; 2, a fiber winding machine, 3, an air expansion shaft, 4, a pressure sensor, 5, a driving system, 6, a slip ring, 6-1, a slip ring rotor, 6-2, a slip ring stator, 7, a signal acquisition system, 8, a control system, 9, a fiber strip, 10, a connecting plate, 11, a fixed base, 12 and a supporting seat.
Detailed Description
The objects, technical solutions and advantages of the present invention will be more apparent from the following detailed description with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the embodiments described are merely some, but not all, of the embodiments of the invention.
The components illustrated in the figures and described and shown in the embodiments of the invention may be arranged and designed in a wide variety of different configurations, and thus the detailed description of the embodiments of the invention provided in the figures below is not intended to limit the scope of the invention as claimed, but is merely representative of selected ones of the embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention, based on the figures and embodiments of the present invention.
It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, element, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, element, method, article, or apparatus.
The features and properties of the present invention are described in further detail below with reference to examples.
The invention discloses a strain detection system for a weak-rigidity energy-containing explosive ribbon winding forming explosive, which comprises a control system 8, a signal acquisition system 7, a fiber winding machine 2 and a frame, wherein a plurality of inflatable shafts 3 are arranged on the frame, a driving system 5 is correspondingly arranged at one end of each inflatable shaft 3, a weak-rigidity energy-containing explosive 1 is arranged on each inflatable shaft 3, a plurality of pressure sensors 4 are arranged on the outer wall of the middle section of each inflatable shaft 3, the weak-rigidity energy-containing explosive 1 is wrapped on the middle section of each inflatable shaft 3, the pressure sensors 4 are connected with the signal acquisition system 7, and the control system 8 is connected with the fiber winding machine 2 and the driving system 5.
The air expansion shaft 3 is driven to rotate at a high speed in a servo mode through the driving system 5, the weak-rigidity energetic grain 1 and the fiber winding machine 2 move logically together according to the command of the control system 8 while rotating at a high speed, and the stretched fiber strip 9 is wound and formed on the surface of the weak-rigidity energetic grain 1 to form a fiber shell of the weak-rigidity energetic grain 1.
The above-defined nominal height generally refers to a height above 100r/min.
Typically, the driving system 5 generally employs a servo motor, and a plurality of inflatable shafts 3 are arranged in parallel.
The rotating speed of the weak-rigidity energetic grain 1 and the linear motion of the fiber winding machine 2 have a certain logic relation, and the expression is:
V=W×R;
Wherein W represents the rotation speed of the weak-rigidity energetic grain 1, namely the rotation speed of a servo motor, and the unit rad/s, V represents the linear speed of the filament winding machine 2, and the unit m/s, and R represents the rotation radius and the unit mm.
More preferably, a slip ring 6 is further installed on the driving end of the air expansion shaft 3, the slip ring 6 comprises a slip ring stator 6-2 and a slip ring rotor 6-1, the slip ring rotor 6-1 is connected to the outer circular surface of the high-speed rotating air expansion shaft 3, the slip ring stator 6-2 and the slip ring rotor 6-1 can continuously detect deformation pressure data of the weak-rigidity energetic grain 1 formed by centrifugal force in the forming process and transmit the deformation pressure data to a signal acquisition system 7, and the analysis and the processing of the quality of the energetic grain produced by winding and forming with the medicine are facilitated in the later period.
Specifically, the signal line of the pressure sensor 4 is communicated with the slip ring rotor 6-1, the slip ring rotor 6-1 is in sliding contact with the slip ring stator 6-2, and the slip ring stator 6-2 is communicated with external acquisition equipment.
The slip ring 6 itself is a device capable of performing electric signal or data transmission between two parts relatively rotating, and is composed of a slip ring stator 6-2 (relatively stationary part) and a slip ring rotor 6-1 (part rotating with the rotating parts). In the process of forming energetic grains, if a rotating process is involved, such as where the grains are formed in a rotating apparatus, the rotor portion may move synchronously with the rotating components and the stator is fixed to the stationary frame of the apparatus. The problem of data transmission between the rotating body and the stationary body is skillfully solved, so that deformation pressure data generated by the grain during rotation can be transmitted from a dynamic environment to an external environment where the static signal acquisition system 7 is located.
Typically, the signal acquisition system 7 employs a data acquisition unit.
As shown in fig. 2, a fixed base 11 and a connection plate 10 connected perpendicularly to the fixed base 11 are provided on the frame, and the slip ring stator 6-2 is connected to the fixed base 11 through the connection plate 10.
As shown in fig. 1, two supporting seats 12 are arranged on the frame, the inflatable shaft 3 penetrates through the two supporting seats 12, and the driving system 5 is arranged on the outer side of one supporting seat 12 and is connected with the inflatable shaft 3.
The control system 8 issues reserved command data, the fiber winding machine 2 and the driving system 5 are controlled to move according to a certain command, the driving system 5 drives the inflatable shaft 3 fixed on the driving system to enable the weak-rigidity energetic grain 1 fixed on the driving system to rotate simultaneously, the high-speed rotation weak-rigidity energetic grain 1 and the fiber strip 9 stretched out of the fiber winding machine 2 finish fiber winding forming of the shell of the weak-rigidity energetic grain 1 together according to the command of the control system 8, the weak-rigidity energetic grain 1 can generate periodic variable load pressure on the pressure sensor 4 contacted with the weak-rigidity energetic grain 1 during high-speed rotation, and the pressure sensor 4 transmits the pressure data to the signal acquisition system 7 for processing and storage through the slip ring rotor 6-1. For example, when the periodically variable load pressure is higher than 20Mpa, deceleration is required.
According to the invention, a plurality of pressure sensors 4 are arranged between the inner wall of the weak-rigidity energetic explosive column 1 and the inflatable shaft 3 and are connected with the signal acquisition system 7, so that periodic variable load pressure data of the explosive column in the tape winding and forming process can be acquired in real time. The method is just like providing eyes for the production process, and monitoring the stress state in the grain at any time, so that the stress change of the grain during winding of each circle and each layer of fiber can be accurately mastered, potential quality problems can be found in time, and the quality of the produced grain is ensured to meet high standard requirements.
Through carrying out analysis processing to the pressure data who gathers, can accurately judge whether the explosive column has appeared the too big problem of pressure in winding process. The pressure condition of the explosive column is different from the normal state, and the change of numerical value or fluctuation rule is reflected on the pressure data, so that the process parameters can be conveniently and timely adjusted in the production process, the unqualified energetic explosive column product is prevented from being finally produced, and the overall qualification rate of the product is improved.
When the periodical variable load pressure is detected to be higher than the preset pressure, the system can prompt to reduce the linear motion speed of the filament winding machine 2 and the rotating speed of the driving system 5 in time. The mechanism realizes dynamic optimization of production process parameters, for example, in the production process, if the pressure on the grain is overlarge in a certain period of time, the speed and the rotating speed are automatically adjusted according to a preset rule, so that the subsequent winding process of the fiber is more stable and uniform, the stress of the grain returns to a reasonable range, the structural integrity and the performance stability of the grain from inside to outside are ensured, the whole production process is enabled to continuously approach to the optimal state, and the production efficiency is improved while the product quality is ensured.
There may be differences in the raw material characteristics, grain size, etc. of the different batches, which all affect the pressure conditions to which the grain is subjected during winding. By means of the strain detection system, no matter what kind of change condition is met, the process parameters can be flexibly adjusted according to the actually collected pressure data, so that the production process can be well adapted to various condition changes, the energy-containing grain produced under different conditions can meet the quality requirements, and the universality and the adaptability of the production process are enhanced.
The energetic explosive column has a certain danger, and if the conditions of internal structural damage, stress concentration and the like occur due to unreasonable stress in the winding and forming process, serious safety accidents can be caused in the subsequent storage, transportation and even use processes. By monitoring the pressure in real time and adjusting the parameters in time, potential safety hazards such as excessive stress and the like of the explosive column in a production link can be effectively avoided, the structural integrity and the performance stability of the explosive column are guaranteed, the safety risk is reduced from the source, and the safety of related application scenes (such as weapon emission, aerospace propulsion and the like) of the energetic explosive column is guaranteed.
The stress condition of the grain in the winding process is accurately controlled, and the final performance reliability of the grain is guaranteed. For example, the energy-containing materials in the explosive column are uniformly distributed and have a stable structure, so that energy can be stably released according to expectations during actual use, abnormal energy release caused by quality problems in the production process is avoided, the energy-containing explosive column is ensured to play a reliable function in a corresponding equipment system, and the safety and reliability of the whole system are improved.
In conclusion, the strain detection system plays an important and positive role in various aspects such as quality control, process optimization, safety guarantee and the like of winding and forming of the weak-rigidity energetic grain belt.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the specific embodiments of the present invention without departing from the spirit and scope of the present invention, and any modifications and equivalents are intended to be included in the scope of the claims of the present invention.
Claims (9)
1. The system for detecting the strain of the weak-rigidity energetic grain belt winding forming grain is characterized by comprising a frame, a control system (8), a signal acquisition system (7) and a fiber winding machine (2);
A plurality of inflatable shafts (3) are arranged on the frame, a driving system (5) is arranged at one end of each inflatable shaft (3), and a weak-rigidity energetic grain (1) is arranged on each inflatable shaft (3);
A plurality of pressure sensors (4) are arranged between the inner wall of the weak-rigidity energetic grain (1) and the air expansion shaft (3), and the pressure sensors (4) are connected with a signal acquisition system (7);
The control system (8) is connected with the filament winding machine (2) and the driving system (5) and is used for controlling the filament winding machine (2) and the driving system (5) to move.
2. The strain detection system for the weak-rigidity energetic grain tape winding forming grains according to claim 1 is characterized in that a slip ring (6) is further installed on the tail end of each ballooning shaft (3), the slip ring (6) comprises a slip ring stator (6-2) and a slip ring rotor (6-1), the slip ring rotor (6-1) is sleeved outside the ballooning shaft (3), and the slip ring stator (6-2) is sleeved outside the slip ring rotor (6-1).
3. The weak-rigidity energy-containing grain strain detection system for winding forming of the grain belt according to claim 2, wherein a signal wire of the pressure sensor (4) is communicated with the slip ring rotor (6-1), the slip ring rotor (6-1) is in sliding contact with the slip ring stator (6-2), and the slip ring stator (6-2) is communicated with the signal acquisition system (7).
4. The strain detection system for the weak-rigidity energetic explosive ribbon winding forming explosive is characterized in that a fixed base (11) and a connecting plate (10) which is vertically connected with the fixed base (11) are arranged on a rack, and a slip ring stator (6-2) is connected with the fixed base (11) through the connecting plate (10).
5. The weak-rigidity energetic grain tape winding forming grain strain detection system according to claim 1, wherein two supporting seats (12) are arranged on the frame, the air inflation shaft (3) penetrates through the two supporting seats (12), and the driving system (5) is arranged on the outer side of one supporting seat (12).
6. A weak rigidity energetic grain tape winding forming grain strain detection system according to claim 1, characterized in that a plurality of inflatable shafts (3) are arranged in parallel.
7. A weak rigidity energetic grain tape winding forming grain strain detection system according to claim 1, characterized in that the driving system (5) employs a servo motor.
8. The strain detection system for the winding forming explosive column of the weak-rigidity energetic explosive column belt according to claim 1 is characterized in that the rotating speed of the weak-rigidity energetic explosive column (1) has a logic relationship with the linear motion of a fiber winding machine (2), and the expression is as follows:
V=W×R;
Wherein W represents the rotating speed of the weak-rigidity energetic grain (1), namely the rotating speed of a servo motor, V represents the linear speed of the fiber winding machine (2), and R represents the rotating radius.
9. A method of operating a weak stiffness energetic grain tape wound form grain strain detection system as recited in any one of claims 1 to 8, comprising the steps of:
The control system (8) controls the filament winding machine (2) and the driving system (5) to move according to the instruction, and the driving system (5) drives the air expansion shaft (3) to rotate, so as to drive the weak-rigidity energetic grain (1) fixed on the air expansion shaft (3) to rotate;
The fiber winding forming of the shell of the weak-rigidity energetic grain (1) is finished by the weak-rigidity energetic grain (1) and the fiber strip (9) stretched out of the fiber winding machine (2) according to the instruction of the control system (8), the weak-rigidity energetic grain (1) can generate periodical variable load pressure to the pressure sensor (4) contacted with the weak-rigidity energetic grain while rotating, the pressure sensor (4) transmits pressure data to the signal acquisition system (7) for processing and storage, and if the periodical variable load pressure is higher than the preset pressure, the control system (8) controls the fiber winding machine (2) and the driving system (5) to decelerate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411928856.5A CN119714184A (en) | 2024-12-25 | 2024-12-25 | A strain detection system for weak-rigidity energetic charge tape winding forming charge and its working method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202411928856.5A CN119714184A (en) | 2024-12-25 | 2024-12-25 | A strain detection system for weak-rigidity energetic charge tape winding forming charge and its working method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6233374B1 (en) * | 1999-06-04 | 2001-05-15 | Cidra Corporation | Mandrel-wound fiber optic pressure sensor |
| US20100118405A1 (en) * | 2006-08-03 | 2010-05-13 | United States Of America As Represented By The Admins Of The Ntl Aeronautics And Space Admins | Telescoping cylindrical piezoelectric fiber composite actuator assemblies |
| CN110132122A (en) * | 2019-05-23 | 2019-08-16 | 西安电子科技大学 | Strain measurement method of solid motor grain based on fully flexible large strain sensor |
| CN112432604A (en) * | 2020-10-30 | 2021-03-02 | 西安近代化学研究所 | Rotary dynamic strain testing system and method for propellant grain winding and wrapping |
| CN115195159A (en) * | 2022-07-07 | 2022-10-18 | 核工业理化工程研究院 | Online measuring device and method for winding forming strain of composite material |
-
2024
- 2024-12-25 CN CN202411928856.5A patent/CN119714184A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6233374B1 (en) * | 1999-06-04 | 2001-05-15 | Cidra Corporation | Mandrel-wound fiber optic pressure sensor |
| US20100118405A1 (en) * | 2006-08-03 | 2010-05-13 | United States Of America As Represented By The Admins Of The Ntl Aeronautics And Space Admins | Telescoping cylindrical piezoelectric fiber composite actuator assemblies |
| CN110132122A (en) * | 2019-05-23 | 2019-08-16 | 西安电子科技大学 | Strain measurement method of solid motor grain based on fully flexible large strain sensor |
| CN112432604A (en) * | 2020-10-30 | 2021-03-02 | 西安近代化学研究所 | Rotary dynamic strain testing system and method for propellant grain winding and wrapping |
| CN115195159A (en) * | 2022-07-07 | 2022-10-18 | 核工业理化工程研究院 | Online measuring device and method for winding forming strain of composite material |
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